PatchSiren cyber security CVE debrief
CVE-2026-110631 moghtech CVE debrief
CVE-2026-110631 debrief: Komodo 2.3.3 Periphery Agent allows unauthenticated RCE via default configuration, enabling attackers to execute commands as root due to empty core_public_keys and passkeys lists. This vulnerability affects Komodo users, administrators, and security teams, requiring immediate verification and remediation of exposed Periphery agents. The issue arises from the agent's failure to properly authenticate connections, allowing unauthorized access to managed hosts. Affected parties must assess their exposure and apply necessary patches or mitigations to prevent exploitation.
- Vendor
- moghtech
- Product
- komodo
- CVSS
- CRITICAL 9.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-10-14
- Original CVE updated
- 2026-10-16
- Advisory published
- 2026-10-14
- Advisory updated
- 2026-10-16
Who should care
Komodo users, administrators, and security teams should assess exposure and remediate vulnerable Periphery agents. Immediate verification is crucial due to the high severity of the vulnerability, which allows unauthenticated remote code execution as root on managed hosts. Affected parties must review their configurations, apply patches or mitigations, and verify the authentication and access controls in place to prevent exploitation.
Why it matters
CVE-2026-110631 allows unauthenticated attackers to execute commands as root on managed hosts via exposed Periphery agents, requiring immediate verification and remediation.
- Unauthenticated remote code execution as root
- Potential for lateral movement within managed hosts
- Exposure of sensitive data and configurations
- Verification of authentication and access controls
Technical summary
CVE-2026-110631: Komodo 2.3.3 Periphery Agent allows unauthenticated RCE via default configuration, enabling attackers to execute commands as root. The vulnerability arises from the agent's failure to properly authenticate connections due to empty core_public_keys and passkeys lists, allowing unauthorized access to managed hosts. This issue requires immediate verification and remediation by Komodo users, administrators, and security teams to prevent exploitation. The vulnerability has a CVSS score of 9.3 and is considered CRITICAL.
Defensive priority
High priority for Komodo users to verify and remediate exposed Periphery agents.
Recommended defensive actions
- Verify and remediate exposed Periphery agents
- Restrict access to port 8120
- Implement authentication for Periphery API requests
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
Official CVE and NVD records, along with vendor and researcher advisories, confirm the vulnerability in Komodo 2.3.3 Periphery Agent. The CVE record was published on 2026-10-14T14:17:05.199Z and has not been modified since then. Evidence from these sources indicates that the vulnerability allows unauthenticated attackers to connect as a trusted Core, issue Periphery API requests, and execute commands on managed hosts typically as root. The default configuration of empty core_public_keys and passkeys lists in the Periphery agent leads
Sources and references
Verified primary and authoritative sources
-
CVE-2026-110631 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-110631
CVE Program - Official CVE Program record with source-provided CVE metadata.
-
CVE-2026-110631 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-110631
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Komodo through 2.3.3 Periphery Agent Unauthenticated RCE via Default Configuration
Unverified legacy reference
URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110631.json
cve_program_cvelist_v5
-
Source reference
Unverified legacy reference
URL: https://github.com/moghtech/komodo/issues/1690
Supplemental source - issue-tracking
-
Source reference
Unverified legacy reference
URL: https://github.com/moghtech/komodo/blob/v2.3.3/bin/periphery/src/state.rs
Supplemental source - technical-description
-
Source reference
Unverified legacy reference
URL: https://github.com/moghtech/komodo/blob/v2.3.3/bin/periphery/src/connection/server.rs
Supplemental source - technical-description
-
Source reference
Unverified legacy reference
URL: https://github.com/moghtech/komodo/blob/v2.3.3/config/periphery.config.toml
Supplemental source - technical-description
-
Source reference
Unverified legacy reference
URL: https://github.com/moghtech/komodo/blob/v1.19.5/bin/periphery/src/api/router.rs
Supplemental source - technical-description
-
Source reference
Unverified legacy reference
URL: https://ravindulakmina.pages.dev/advisories/komodo-periphery-fail-open-rce/
Supplemental source - technical-description
-
Source reference
Unverified legacy reference
URL: https://www.vulncheck.com/advisories/komodo-through-2.3.3-periphery-agent-unauthenticated-rce-via-default-configuration
Supplemental source - third-party-advisory
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.